In a myelinated fiber, only the initial segment in the trigger zone has voltage-regulated channels.

Name: In a myelinated fiber, only the initial segment in the trigger zone has voltage-regulated channels.
Brand: Quizplus
Rating: 4.9 (45 reviews)

Question

Quizplus · Accepted Answer

In a myelinated fiber, voltage-regulated channels are concentrated at the nodes of Ranvier, not just the initial segment in the trigger zone. This allows for saltatory conduction, where action potentials jump from node to node.

In a Myelinated Fiber, Only the Initial Segment in the Trigger